72057726270 has 48 divisors (see below), whose sum is σ = 188396778960. Its totient is φ = 19108040832.

The previous prime is 72057726253. The next prime is 72057726287. The reversal of 72057726270 is 7262775027.

72057726270 is a `hidden beast` number, since 7 + 2 + 0 + 577 + 2 + 6 + 2 + 70 = 666.

It is an interprime number because it is at equal distance from previous prime (72057726253) and next prime (72057726287).

It is a super-2 number, since 2×72057726270² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2220319 + ... + 2252538.

It is an arithmetic number, because the mean of its divisors is an integer number (3924932895).

Almost surely, 2^72057726270 is an apocalyptic number.

72057726270 is an abundant number, since it is smaller than the sum of its proper divisors (116339052690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72057726270 is a wasteful number, since it uses less digits than its factorization.

72057726270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473049 (or 4473046 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 45.

The spelling of 72057726270 in words is "seventy-two billion, fifty-seven million, seven hundred twenty-six thousand, two hundred seventy".